Write a net ionic equation for the overall reaction that occurs when aqueous solutions of carbonic acid and potassium hydroxide are combined. assume excess base.

Answer:

A

Explanation:

Convert the moles of ammonia gas to liters using the ideal gas law.

If 3.8 liters of nitrogen gas and 26.66 liters of hydrogen gas were allowed to react, we need to determine how many liters of ammonia gas could form.

To solve this, we need to know the balanced chemical equation for the reaction between nitrogen gas and hydrogen gas to form ammonia gas.

Once we have the equation, we can use the stoichiometry to find the molar ratio between the reactants and products.

This ratio will tell us how many moles of ammonia gas can be formed.

Finally, we can convert the moles of ammonia gas to liters using the ideal gas law.

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The equation below shows hydrogen reacting with oxygen to produce water 2H₂ + O₂ → 2H₂O If 16 mole of oxygen were reacted with excess hydrogen gas, then 32 mole of water would be produced

Mole is the amount of substance of a system which contains as many elementary entities

Here given data is

Hydrogen reacting with oxygen to produce water and the reaction is

2H₂ + O₂ → 2H₂O

16 mol of oxygen were reacted with excess hydrogen gas

Then we have to calculate moles of water would be produced = ?

Moles of oxygen = 16 moles

From the balanced equation

1 mole oxygen react to give 2 moles of water

16 moles oxygen react to give 2×16 = 32 moles

Therefore 32 moles of water would be produced in the reaction

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d. 32 mol in case you dont want to read that

Answer:

The signal from the deceleration sensor ignites the gas-generator mixture by an electrical impulse, creating the high-temperature condition necessary for NaN3 to decompose. The nitrogen gas that is generated then fills the airbag. hope that helps love!

A low pH is necessary for a product to be processed using hot fill technology.

Hot fill technology is a popular process used in the food industry to preserve and extend the shelf life of products. In this process, the food product is heated to a high temperature and then filled into a container. The container is then sealed to prevent contamination. The high temperature ensures that bacteria and other microorganisms are destroyed, which makes the food product safe for consumption. The low pH is essential for a product to be processed using hot fill technology. The low pH helps to prevent the growth of bacteria and other microorganisms, which can spoil the product. The low pH also helps to extend the shelf life of the product by inhibiting the growth of spoilage organisms. Low pH is typically achieved by adding acids such as citric acid, malic acid, or phosphoric acid to the product. The amount of acid added depends on the desired pH level. The pH of the product is critical to ensure the safety and quality of the product. The product should have a pH level of 4.5 or below to be processed using hot fill technology. This is because most bacteria cannot grow at a pH below 4.5. A low pH helps to create a hostile environment for bacteria and other microorganisms, which helps to prevent the growth of these organisms and extend the shelf life of the product. The low pH helps to prevent the growth of bacteria and other microorganisms, which helps to extend the shelf life of the product. The pH of the product should be 4.5 or below to ensure the safety and quality of the product.

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He/she will add heat because it is the only thing that will react for every substance.

Answer:

CUCO3_ CuO + CO2

Explanation:

exchange reaction occur when two soluble salts are mixed and immediately form an insoluble salt

Answer:

1.20 L = 1200 mL

Explanation:

P1V1/T1 = P2V2/T2

V2 = P1*V1*T2/(T1*P2)

V1 = 700ml =0.700 L

P1 = 106.6 kPa

T1 = 7+273.15 = 280.15 K

T2 = 27 + 273.15 = 300.15 K

P2 = 66.6 kPa

V2 = 106.6*0.700*300.15/(280.15*66.6)= 1.20 L=1200 mL

Explanation:

This is because the hydrogen bonding in water H2O is stronger than that is hydrogen sulfide H2S.

Answer:

In areas without excessive light pollution, a band of light can be seen spanning the night sky ... - did not match any news results.

Suggestions:

Explanation:

Answer:

stars in the milky way

Explanation:

The band of light that can be seen spanning the night sky comes from stars in the Milky Way Galaxy. The Milky Way Galaxy is a spiral galaxy that contains hundreds of billions of stars.

The reaction for the formation of HI, at the given time, has a reaction quotient of 613.

What is the reaction quotient?

Reaction quotient is the ratio of the concentration of product and reactant raised to the stoichiometric power at a given time interval.

The chemical reaction for the formation of HI is given as:

\(\rm H_2\;+\;I_2\;\rightarrow\;2\;HI\)

The reaction quotient is given as:

\(\rm Q=\dfrac{[HI]^2}{[H_2]\;[I_2]}\)

The concentration of system at the time, t has been:

Hydrogen = 0.1 M

Iodine = 0.2 M

HI = 3.5 M

Substituting the values for reaction quotient:

\(\rm Q=\dfrac{(3.5)^2}{(0.1)(0.2)}\\ Q=613\)

The reaction quotient for the reaction is 613. Thus, option D is correct.

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Answer:

by Judith Curry On what we can learn from Goldilocks and The Three Bears ... In planetary science, the 'Goldilocks zone' is terminology for the the band ... We all know the fairy tale story of “Goldilocks and the three bears”, where GL ... as the discovery that the Earth was not the center of the solar system.

Explanation:

Answer:

Some changes that can occur in ecosystems are seasons, tide cycles, population sizes, succession, evolution, landscape changes, and climate changes.

Explanation:

For a nucleus to exhibit nuclear magnetic resonance (NMR) it must be magnetic. Magnetic nuclei include hydrogen, phosphorus, fluorine, and carbon-13. Hydrogen nuclei (protons) possess a magnetic moment that can interact with an external magnetic field, while phosphorus, fluorine, and carbon-13 nuclei possess a spin that can interact with an external magnetic field.

Here, correct option will be d. both b and c.

When placed in a static magnetic field, these nuclei will align themselves either with or against the external field, giving rise to a net magnetic moment. When an oscillating electromagnetic field is applied to these nuclei, they will absorb energy at specific frequencies and nuclei can be identified and quantified according to their particular energy absorption profile.

For NMR to occur, the external magnetic field must be strong enough to override the random thermal motion of the nuclei and force them to align with it. This requires a field strength of roughly 1-3 Tesla. The external magnetic field also needs to be homogenous in order to obtain a signal that is well-resolved and can be accurately measured. This is typically achieved by using a special NMR probe containing a powerful magnet.

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The property of acids which would cause acid rain to damage buildings over time is:

Acids react with limestone.

The correct answer choice is option c.

This simply means that acids has this property which corrodes the surface they come in contact with especially stones.

However, this can be done by coating the surface of metals, or carbonate by coating it with other metals. By so doing, this can prevent acid rain damage to it.

That being said, by default, concentrated acids are highly corrosive.

Coating surfaces of metals can prevent acid rain damage to it

This refers to a substance which when dissolved in water, it produces hydrogen ion as the only positive ion in the solution.

So therefore, the property of acids which would cause acid rain to damage buildings over time is acids react with limestone.

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Among the options provided, the following will increase the pH of a weak acid, HA, in aqueous solution:

ii. Making a buffered solution by adding NaA

v. Titrating with KOH

Explanation:

i. Addition of water: Adding water to a weak acid solution does not change the concentration of the acid or its conjugate base, so it does not affect the pH significantly.

ii. Making a buffered solution by adding NaA: Adding a salt, such as sodium acetate (NaA), to a weak acid solution creates a buffered solution. The conjugate base of the weak acid helps to resist changes in pH, making the solution more resistant to pH changes caused by the addition of acid or base.

iii. Addition of NaCl(s): Adding sodium chloride (NaCl) does not directly affect the pH of a weak acid solution.

iv. Addition of HNO3: Adding a strong acid, such as HNO3, will increase the concentration of H+ ions in the solution, decreasing the pH.

v. Titrating with KOH: Titrating a weak acid with a strong base, such as KOH, neutralizes the acid by reacting with it to form water and a salt. As the weak acid is neutralized, the concentration of H+ ions decreases, resulting in an increase in pH.

Therefore, options ii (Making a buffered solution by adding NaA) and v (Titrating with KOH) will increase the pH of the weak acid solution.

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Answer:

498 g

0.498 kg

Explanation:

Answer:

4.498 kg

1.47

35.0

51.5

Explanation:

Answer:

4

Explanation:

hope this helps, can i have brainliest

At equilibrium for the reaction 2A(g)⇌B(g), with a Kc of 1, the relationship between [A] and [B] is [A]=[B].

If Kc=1 for the equilibrium 2A(g)⇌B(g), the relationship between [A] and [B] at equilibrium is [A]=[B]. This is because the equilibrium constant, Kc, is equal to the concentration of the products divided by the concentration of the reactants, raised to the power of their coefficients. In this case, \(Kc=[B]/[A]^2.\)

Since Kc=1, we can rearrange the equation to get \([A]^2=[B].\)Taking the square root of both sides gives us [A]=[B].

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Answer:

Protons and Neutrons have approximately the same mass.

Equal numbers of protons and electrons make an atom neutral.

Protons have a positive charge

Explanation:

Protons and Neutrons have approximately the same mass. - both are 1 amu

Equal numbers of protons and electrons make an atom neutral. - protons are +1 and electrons are -1, so they cancel each other if there are equal amounts.

Protons have a positive charge - this is true.

Hi Steven!

So yet again, we find ourselves doing math when we thought the class was chemistry!  For this we're going to do a standard conversion that we do a lot in GenChem, converting from grams to moles.

In this case, we're starting with 0.171g N2O.  Let's go ahead and convert that to moles by using the molar mass, which is 44.013 g/mol.

.171 g N2O * (1 mol N2O / 44.013 g N2O) = 0.00389 mol N2O

So we got to moles of dinitrogen monoxide - now we need to know how many moles of nitrogen!  We see that there's a subscript of 2 after the N, meaning there are two moles of N for every mol of N2O.  You can think of it in terms of food -- for every 1 sandwich, there are two pieces of bread.

So let's multiply the number of moles of N2O by 2, to get moles of N!

.00389 mol N2O * ( 2 mol N / 1 mol N2O) = .00778 mol N!

Hope that helps :)

Answer:

To determine if the ether solution is dry after the addition of calcium chloride in Grignard reactions, a method called the spot test is used.

The spot test involves withdrawing a sample of the ether layer using a pipette and putting it on a piece of filter paper. If the spot left on the filter paper is not displaced by the addition of a drop of water, the ether solution is considered dry.

The reaction of Grignard, a reaction involving the organometallic compound formed by the addition of magnesium to a halogenated hydrocarbon in ether solution, is a very significant reaction in organic chemistry. The addition of calcium chloride to the ether solution is done to dry the solution before the addition of the Grignard reagent.

The reaction of Grignard is the addition of the organometallic compound to a carbonyl or related functional group in a molecule, resulting in the formation of an alcohol. The alcohol produced from the reaction of Grignard can either be a primary, secondary or tertiary alcohol depending on the carbonyl or related functional group present in the molecule.

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Answer: look up field lines for the earths magnetic fields and then go to images  

Explanation:

Molecular formular for C3H8O ( Isopropyl alcohol)

comprises of 3 Carbon, 8 Hydrogen and 1 oxygen ,

So, first box =3

second box = 8

third box = 1

emperical mass c3h80 =( 3*12) + (1*1) + (1*15.99) = 53.03 g/mole

Molecular formular = molecular weight / emperical mass

= 60.10g/mole /53.03g/mole = 1.133

if we multiply subscripts numbers ; we still get

Molecular formula = C3H8O

However, the second option doesnt have the option of 8 hydrogen .

Answer:

Kinetic Energy

Explanation:

When we run we are using chemical energy in our bodies to produce movement ( kinetic energy ) .

HI :)

True

Hope this helps :)

The specific heat capacity of the alloy that requires 49.1 kj to raise the temperature of 180.7 g alloy from 217 k to 489 k is approximately 0.815 J/g°C.

Using the formula below, we can calculate the alloy's specific heat capacity (c) in joules per gram per degree Celsius (J/g°C):

q = mcΔT

Where q is the heat energy, m is the mass of the alloy, c is the specific heat capacity of the alloy, and T is the temperature change in degrees Celsius.

provided values

Given that 1 kJ = 1,000 J, q = 49.1 kJ = 49,100 J.

m = 180.7 g

ΔT = 489 K - 217 K = 272 K

We can find c by rearranging the formula:

c = q / (m * ΔT)

replacing the specified values:

c = 49,100 J / (180.7 g * 272 K)

c ≈ 0.815 J/g°C

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During this laboratory experiment, the solution of glucose and yeast produced ethanol and carbon dioxide gas through fermentation. The ethanol was then distilled using a bunsen burner, and some of the glucose decomposed into a black carbon deposit on the inside of the flask due to the flame of the burner being too close to the bottom of the flask.

Fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol.

The solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask.

The ethanol evaporated and then condensed in the receiving flask.

Some of the glucose decomposed into a black carbon deposit on the inside of the flask.

In this laboratory experiment, a fermenting aqueous solution of glucose and yeast produced carbon dioxide gas and ethanol. The solution was then distilled using a bunsen burner and the ethanol evaporated and condensed in the receiving flask. The flame of the burner was kept too close to the bottom of the flask which caused some of the glucose to decompose into a black carbon deposit on the inside of the flask.

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Answer:

15M

Explanation:

To find molarity, you use the equation :

Molarity = \(\frac{moles of solute}{liters of a solution}\)

So to find the molarity, you would do 90mols of the solute divided by 6 liters of the solvent which is 15M.